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21.
以南康市龙华乡集贸商住小区修建性详细规划项目为例,研究一种控制点重新定位的方法。实验以精度较高的参照点为依据,将假定坐标系交会出的参照点转换到原坐标系,从而实现了控制点的重新定位。同时,主要通过该项目的实际情况,结合测角前方交会观测的角度,然后由新的控制点坐标计算出的参照点坐标与原始参照点坐标进行比较、分析,证明了该方法是切实可行的。 相似文献
22.
在前景化理论的观照下对语言材料的客观分析将有助于更好地理解和把握作品的精神实质。《乞力马扎罗山的雪》中海明威运用各种前景化手法在叙事技巧和语言选择等诸多方面偏离常规,从语言形式前景化、叙事视角前景化、象征手法前景化和对话前景化四个方面展示哈利纷乱复杂的心理结构并深刻反映了"迷惘的一代"的精神危机。 相似文献
24.
石鸿烈 《昆明师范高等专科学校学报》1997,(Z1)
对1995年9月昆明全国体操冠军赛吊环比赛中3个十字支撑动作的“时间”和“角度”状况的观察与统计,分析了吊环十字支撑类动作存在的问题,为进一步探讨发展我国吊环技术水平的途径,提出了训练中提高十字支撑类动作的“时间”和“角度”规格的思路、措施和建议. 相似文献
25.
董友福 《海南广播电视大学学报》2012,(3):28-32
汪曾祺新时期小说多是以童年为视角,对旧时生活的回忆。促其转变审美角度的因素是多方面的：一是温馨的童年生活所沉淀的情感底色决定了他的审美取向;二是自觉规避现实生活中的浮躁情感与旧时生活回忆的契合;三是善且美的主题表达与童年视角的契合。 相似文献
26.
The aim of this study was to evaluate the effect of varying knee angle (120° and 90°) on the external validity of an isometric leg press test with reference to vertical jump performance. Isometric peak force (PF 120 and PF 90 ), rate of force development (RFD 120 and RFD 90 ), and maximum height reached with a squat jump and counter-movement jump were measured in 14 males. Although RFD 120 was significantly correlated with squat jump and counter-movement jump performance ( r = 0.71 and 0.69), and the correlations with PF 120 approached statistical significance ( r = 0.53 and 0.50), neither PF 90 nor RFD 90 was significantly related to vertical jump performance. Furthermore, although both RFD 120 and PF 120 were significantly different between the best five and the worst five jumpers, RFD 90 and PF 90 did not differentiate between individuals' vertical jump performance. We conclude that the choice of joint angle affects the external validity of isometric strength testing. Based on our results, we recommend accurate control of biomechanical specificity and assessment at different angles to find the position at which isometric strength testing is most comfortable. 相似文献
27.
Nicholas P. Linthorne 《Journal of sports sciences》2013,31(5):359-372
The aim of the study was to assess the accuracy of a method of calculating the optimum release angle in the shot put. Using the proposed method, the optimum release angle that produces the greatest flight distance is calculated by combining the equation for the range of a projectile in free flight with the relations between release speed, release height and release angle for the athlete. The method was evaluated using measurements of five college shot-putters who performed maximum-effort throws over a wide range of release angles. When the athletes threw with high release angles, the shot was released from a greater height above the ground and with a lower release speed. For all five athletes, the calculated optimum release angle was in good agreement with the athlete’s preferred release angle. Each athlete had his own specific optimum release angle because of individual differences in the rate of decrease in release speed with increasing release angle. Simple models of shot-putting were developed to explain the relations between release speed, height and angle in terms of the anthropometric and strength characteristics of the athlete. 相似文献
28.
针对基于四象限压力传感器阵列的迎角测量方法中传感器信号受到干扰的问题,讨论了在其预处理中应用小波包变换进行信号分离提取的方法。根据小波包分解理论,对信号进行小波包分解,信号中频率不同的部分落在不同的尺度上,剔除反映干扰的变换尺度,提取出有用信息。结果表明,该方法可很好地提取信号的主要特征信息,也有效地去除了确定性干扰和随机噪声,与传统的信号滤波方法相比较具有明显的优点,同时为后续的信号处理奠定了基础。 相似文献
29.
饶玲 《重庆职业技术学院学报》2005,14(3):135-137
为维护国家主权的独立和领土的完整，中国需要收复台湾；台湾的重要战略地位决定了中国应尽早收复台湾；《反分裂国家法》草案的通过更坚定了我们收复台湾的决心；运筹帷握，促成时机一统中国。 相似文献
30.
使用三台数码摄像机对2003年北京世界花样滑冰大奖赛的11名男子运动员(其中3名为中国运动员)进 行拍摄,本文选取了高松、瑞斯特考特、张民三名运动员的勾手跳跳跃动作的图像,采用美国爱利尔运动解析软件 系统处理得到其运动学参数,最后结合勾手跳跳跃技术动作的原理对数据进行分析得出结论。 相似文献